Proximity-Sensing Interface for Gloved Touch Detection
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Solution Overview
Problem
Existing portable electronic devices with touch-sensitive interfaces face challenges in responsiveness when used with gloves or protective covers, as they often require direct skin contact, limiting functionality and increasing complexity with combined sensor technologies.
Innovation Solution
A portable electronic device equipped with a proximity-sensing user interface that captures distance information to differentiate between direct skin contact and gloved or covered interactions, adjusting input modes to accommodate varying usage scenarios, including capacitive touch sensor panels and force sensors to verify touch actions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a touch-sensitive user interface requires direct skin contact for operation, then the interface can be kept simple in design, but the interface becomes unresponsive when a user wears a glove or protective cover
Solution Approach 1:
The system dynamically changes the sensitivity parameter of the touch interface based on detected conditions. When a glove or protective cover is detected (through prolonged proximity without direct contact), the system increases the sensitivity threshold to recognize touches through the material layer, thereby maintaining responsiveness across different usage scenarios without requiring hardware changes
Solution Approach 2:
The touch interface transitions from a static sensitivity setting to a dynamic system that automatically adjusts its response characteristics. The interface monitors touch patterns and proximity data in real-time, adapting its sensitivity level during operation to accommodate whether the user is wearing gloves or using bare skin, ensuring consistent usability
2Reliability
If multiple sensor technologies are combined to enhance responsiveness with gloves, then the interface becomes more versatile, but the hardware complexity and cost increase
Solution Approach 1:
The existing capacitive touch sensor panel is made multi-functional by programming it to detect both direct skin contact and touches through glove materials. By analyzing touch pressure, contact area, and proximity patterns, the single sensor type performs the work of multiple specialized sensors, reducing hardware complexity while maintaining versatility
Solution Approach 2:
The system uses its own existing sensor data (proximity and touch information) to automatically determine when a glove is being worn and adjusts its sensitivity accordingly. This self-calibration approach eliminates the need for separate detection mechanisms or manual configuration, allowing the interface to adapt autonomously without additional hardware
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances user interaction by allowing touch actions to be recognized even when gloves are worn or the interface is covered, maintaining responsiveness and comfort while reducing hardware complexity and cost.
Implementation Method 1
a proximity-sensing user interface which is configured to capture position information and distance information, the distance information being indicative of a distance at which a user's skin is positioned from a surface of the proximity-sensing user interface
Data Source
AI summary
A portable electronic device comprises a proximity-sensing user interface and a controller. The proximity-sensing user interface is configured to capture position information and distance information. The controller is coupled to the proximity-sensing user interface and is configured to process first distance information (31) captured by the proximity-sensing user interface during a pre-determined touch action, to determine whether a material layer (25) is interposed between the user's skin and the proximity-sensing user interface. The controller is configured to selectively set an input mode from a first input mode to a second input mode when the first distance information indicates that no material layer (25) is interposed between the user's skin and the proximity-sensing user interface.